Pipe hanger



Dec. 24, l929.- L. ZIIFFERER PIPE HANGE R Original Filed June 18, 1927 awn/52 Patented Dec. 24, 1929 STATS PTll FFliIE PIPE HANG-ER Application filed June 18, 1927, Serial 5 parts being inseparably connected. The present invention is directed more particularly to the connection between the sleeve and ring by which these parts tend to remain in a relatively fixed rotative position, although freely g rotatable after the one has been shifted longitudinally upon the other. The invention relates further to a method by which two such hanger components may be produced and assembled expeditiously.

A suggestive embodiment of this invention is set forth in the accompanying drawing wherein Figure 1 is a view in elevation of the hanger in its entirety, a pipe, shown in transverse section, being supported therein;

Fig. 2 is a fragmentary detail showing in elevation the sleeve component of the hanger, and a portion of the ring component thereof in vertical section, these parts occupying their normal relative positions;

Fig. 3 is a similar view showin the ring shifted to a turning position upon t 1e sleeve; Fig. 4L is a view in elevation of the sleeve as it appears prior to the assembly therewith of the ring component;

Fig. 5 is a fragmentary sectional detail of the ring component disassociated from the sleeve; and

Figs. 6 and 7, which are views in elevation of two sleeve components per se, illustrate modifications of-the structure elsewhere shown.

The pipe hanger of this invention com prises a ring A having a swiveled connection with a sleeve B the internal threads of which co-operate with a depending bolt C having an overhead fastening. By rotating the sleeve the hanger may be adjusted vertically upon the bolt. A device of this character is adapted to support a pipe D which is receivable within the ring A, as shown.

The sleeve is provided by preference with a polygonal head 10 affording a convenient wrench hold. It may also have one or more transverse apertures 11 affording a view of No. 199,706. Renewed April 26, 1929.

the supporting bolt C which is threaded therewithin. A flange 12 which extends circumferentially of the sleeve provides an upper stop for a collar 1 which upstands from the ring component A. At the lower end of the sleeve is a second flange 15 providing a lower stop for the ring collar. The sleeve portion 16 between the two stop flanges constitutes a necl: having a length sufficient for the collar to be shifted vertically thereupon so as to assume either of two positions.

By reference to Figs. 2 and 3, it will be noted that I have provided within the collar an annular channel 17 which is open on its lower side. The upper side of this channel is defined by a shoulder 18 which is normally rested upon the flange 15. This shoulder undulates to provide teeth 19 having a form and disposition for co-operation with complementary teeth 20 which upstand from the stop flange 15. lVhen the ring is in down position, as indicated in Figs. 1 and 2, these teeth 19 and 20 interengage to oppose rotative movement of the ring upon the sleeve. The collar 14 which surrounds the neck portion of the sleeve when shifted to an upper position, as indicated in Fig. 3, permits the ring to rotate freely upon the sleeve.

I would have itnoted that the form of the interengaging teeth just described be variously modified. For instance, in Fig. 6 I have suggested ratchet teeth 20 which allow a free one-way turning movement of the ring relative to the sleeve without any preliminary shifting of the former relative to the latter. Again, in Fig. 7, I have suggested the use of a cam 20 for the same purpose. In both of these alternative constructions, which are merely suggestive of several, the ring tends to remain in a fixed rotative position relative to the sleeve, although it is capable of rotation upon the sleeve in a single direction, should this be desired.

A pipe hanger answering to this description is advantageous if its components are made sturdy and inseparable. This can be accomplished economically in a commercial way by casting these parts from iron which is preferably annealed thereafter. This requires that the sleeve be first produced, and

then be covered around its neck and lower flange with some sort of insulation which will enable it to serve as'a core in the casting of the ring. Certain difficulties are presented to such a procedure, due largely to the fact that the presence of any insulation which is applied to the sleeve will tend to obliterate the teeth which are formed upon the lower flange thereof. I overcome this obstacle by applying to the sleeve a thin insulation 21 consisting of a suitable sand mixture-per haps g nd of an inch thick. l/Vhen so treated, the ring may be cast around the sleeve without adhering theretoand without developing any blows. This sleeve, it will be noted, further, transfers to the shoulder of the ring collar the impression of its teeth, the one being male and the other female. This can only result, however, from the application of the insulation in a manner which preserves the form of these teeth suliiciently for a definite transfer thereof to the ring collar.

An extensive experience in the production of these pipe hangers has demonstrated that the construction and method of manufacture herein described meets all the necessary commercial requirements. The hangers so made are sturdy, require no machinery, and pre sent their two components in inseparable relation for convenience in handling and installation.

I claim:

1. A pipe hanger formed of inseparable sections comprising a pipe receiving element, a collar on said element, a sleeve mounted in said collar, spaced integral stops on the sleeve on opposite sides of the collar preventing disengagement of the sleeve and collar, cooperating elements on the collar and one of the stops for resisting relative rotation of the collar and sleeve, the other stop being spaced from the first stop a distance sufficient to allow longitudinal movement of the collar on the sleeve, whereby the ring is freed for rotation on said sleeve.

7 2, A pipe hanger formed of inseparable sections comprising a pair of members adapted to have longitudinal and rotative movement on each other, one of the members being adapted to receive the pipe and the other member being mounted on the first member and being adapted to engage a support,spaced stops on the support engaging member for preventing disengagement of the other member, coacting locking means mounted on the two members adapted to be held in engagement by the weight of the pipe and resist rotation of one member relative to the other, said locking means being movable out of cooperative engagement by sliding the pipe supporting member longitudinally of the other member.

3. A pipe hanger formed of inseparable units comprising an elongated member adapted to be suspended from a support, a pipe receiving member rotatable and slidable longitudinally on said elongated member, fixed spaced stops on the elongated member for limiting the movement of the pipe receiving member, one of the stops being disposed intermediate the ends of the elongated member and the other of the stops being disposed adjacent the end of the elongated member, said last mentioned stop and said pipe receiving member being provided with coacting locking portions adapted to be held in engagement by the weight of the pipe for resisting relative rotation of the members, said locking portions being movable out of cooperative position by sliding the pipe supporting member longitudinally of the other member.

LOTHAR R. ZIFFERER. 

